A magnitude 3.9 earthquake struck near Ontario at 10:34 a.m., Wednesday, according to the U.S. Geological Survey.

Several small earthquakes hit the Inland Empire early Wednesday morning, but there were no reports of damage. Ontario saw two ...

Earthquakes’ sudden, rapid shaking can cause fires, tsunamis, landslides or avalanches. They can happen anywhere, but they’re ...

A magnitude 3.5 earthquake was reported less than a mile south of Ontario International Airport early Wednesday afternoon, the U.S. Geological Survey says.

The quakes struck near Rialto, Ontario and Lytle Creek in San Bernardino County, producing weak to light shaking, according ...

It was a magnitude 3.5. That was later followed by a 3.9 earthquake at 10:34 a.m., with its center about 4.4 miles southeast of Ontario and 4.7 miles northwest of Jurupa Valley in Riverside County.

Two earthquakes struck near Ontario within 30 minutes on Saturday morning, with a magnitude of 3.5 and 3.9, respectively, according to the U.S. Geological Survey.

A swarm of earthquakes struck Ontario on Saturday morning, the U.S. Geological Survey reported. The first shaker was a 3.5 magnitude earthquake at about 10:05 a.m. and was centered nearly three ...

But in Ontario, one thing has been consistent: earthquake weather. From Sept. 7 through Oct. 6, the city had four quakes of magnitude 3 or greater.

TORONTO – Earthquakes Canada is reporting a 5.1-magnitude earthquake just west of Ottawa that was felt as far away as Toronto. The federal agency that monitors earthquakes revised its original ...